'MOON DUST ' U.S. Army soldiers blow fine sand from their weapons after returning to Forward Operating Base Warhorse from a mission in Baqubah, Iraq, Aug. 18, 2008. The soldiers area ssigned to 2nd Battalion, 2nd Stryker Cavalry Regiment. Referred to by soldiers as "moon dust," the sand has the consistency of talcum powder. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 126176-O-MJF53-008.jpg Photo Gallery